<!DOCTYPE html>
<html>
<head>
    <meta charset='UTF-8'>
    <title>基本列表</title>
    <script src="../js/vue.js"></script>
</head>
<body>
    <div id="root">
        <!-- 遍历数组 -->
        <h2>人员列表</h2>
        <button @click="update1">更新信息</button>
        <ul>
            <li v-for="(p ,index) in persons" :key="p.id">
                {{p.name}}-{{p.des}}-{{p.sex}}
            </li>
        </ul>
    </div>
</body>
<!--   JS   -->
    <script>
         new Vue({
            el:'#root',
            data:{
                persons:[
                    {id:'001',name:'马冬梅',des:18,sex:'女'},
                    {id:'002',name:'周冬雨',des:26,sex:'女'},
                    {id:'003',name:'周杰伦',des:48,sex:'男'},
                    {id:'004',name:'汪伦',des:35,sex:'男'}
                ],
            },
            methods: {
                update1(){
                    /* this.persons[0].name='马老师'
                    this.persons[0].des=18
                    this.persons[0].sex='男' */
                    //this.persons[0] = {id:'001',name:'马老师',des:18,sex:'男'}//不奏效，vue没有监测到数据改变
                    this.persons.splice(0,1,{id:'001',name:'马老师',des:18,sex:'男'})
                }
            },
        })
    </script>
</html>